Mechanical Features

Inner Focus System

Focusing by fixing the front lens and then moving the lens in the barrel back-and-forth. Provides a stable grip since the length of the lens is unchanged while focusing. In addition, since the front lens does not rotate while focusing, there is very little effect when using a Polarizing filter.

Rear Focus System

Focusing by moving a rear lens. Provides a stable grip since the length of the lens is unchanged while focusing. In addition, since the front lens does not rotate while focusing, there is very little effect when using a Polarizing filter.

Quick Frame

A system that allows manual zoom operation with the servo mode engaged.

Electrical Features

DIGIPOWER

Many new functions as well as very accurate lens movement are possible by employing a digital lens operating system. It allows for you for incredible control for every application.

Quick Zoom

High speed zoom (0.7sec) to the full telephoto position by depressing one button for a focus check, when released, the lens goes back to the original focal length.